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Processing method for repairing blade tip mechanism of wind turbine generator set

A process method and technology for wind turbines, applied in the field of wind power, can solve problems such as deformation or welding of guide boxes, loss of power generation of wind turbines, etc., and achieve the effects of low maintenance cost, enhanced strength, and simple process

Active Publication Date: 2013-07-24
BEIJING TIANYUAN SCI & TECH CREATION WINDPOWER TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a process for repairing the blade tip mechanism of a wind turbine, so that it can solve the obstacle of the blade tip brake mechanism without replacing spare parts, avoid the deformation of the guide box or open welding of the blade during operation, and solve the problem of The loss of power generation and vibration of the wind turbine unit caused by the obstacle of the blade tip brake mechanism, thereby overcoming the shortcomings of the existing technology

Method used

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  • Processing method for repairing blade tip mechanism of wind turbine generator set
  • Processing method for repairing blade tip mechanism of wind turbine generator set

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Embodiment Construction

[0022] The invention corrects and welds the deformed or unwelded guide box, and then fills the back of the guide box so that the guide box and the web of the box girder become a whole, thereby achieving the purpose of repairing and strengthening the guide box, and avoiding the blades from running During the process, the guide box is deformed or the welding is opened.

[0023] see figure 1 As shown, the existing common guide box of the tip brake system is a rectangular box formed by splicing three 4mm thick stainless steel plates, including a back plate 1 , a base 3 and a pair of side plates 2 . During the normal retraction process of the blade tip, the guide box achieves the purpose of positioning the blade tip by positioning the guide sleeve. During this process, the guide box needs to overcome the resistance during the rotation of the blade tip.

[0024] The specific steps of the process for repairing the blade tip mechanism of the wind turbine in the present invention are ...

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Abstract

The processing method for repairing a blade tip mechanism of a wind turbine generator set. The processing method includes the following steps: dismantling parts inside a blade tip and a guiding box; welding a bolt at the deformation zone of a back plate of the guiding box, installing a back plate correction tool at the edge of the guiding box, the bolt penetrates through the back plate correction tool and is connected with a nut, carrying out correction on the back plate of the guiding box by screwing the nut, after the correction is finished, welding the back plate and a base, and dismantling the back plate correction tool and the bolt; welding the bolt at the deformation zone of a side plate of the guiding, installing a side plate correction tool inside the guiding box, the bolt penetrates through the side plate correction tool and is connected with a nut, and carrying out correction on the side plate of the guiding box by screwing the nut, after the correction is finished, welding the side plate, the back plate and the base, and dismantling the side plate correction tool and the bolt. According to the processing method for repairing the blade tip mechanism of the wind turbine generator set, correction and welding to deformation and open weld of the guiding box of vane blade tip braking mechanism of a fixing blade wind turbine generator set are carried out, and spare parts do not need to be replaced to solve stoppage of the blade tip braking mechanism. According to the process method for repairing the blade tip mechanism of the wind turbine generator set, the technology is simple, and maintenance cost is low.

Description

technical field [0001] The invention relates to the technical field of wind power, in particular to a process method for repairing a blade tip mechanism of a wind turbine. Background technique [0002] The guide box is an important part of the blade tip braking system of the fixed-pitch wind turbine. During the rotation of the blade tip, the range of motion of the guide sleeve is achieved, so as to achieve the purpose of retracting and retracting the blade tip. [0003] During the process of retracting and rotating the blade tip, the guide sleeve is fixed, and the guide shaft is connected with the hydraulic cylinder by the blade tip wire rope. The rotation of the entire blade tip is achieved through the cooperation of helical teeth. During the rotation of the blade tip, the guide box needs to overcome the lateral resistance of the blade tip in the process of retracting and retracting, and ensure that the guide box has sufficient strength to overcome this resistance. [000...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23P6/00
Inventor 李奉公
Owner BEIJING TIANYUAN SCI & TECH CREATION WINDPOWER TECH
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